Radial lock



Aug.` 19, 1924.

E. S. BURDICK RADIAL LOCK I Filed Oct. 29 1921 5 Sheets-Sheet 1 l III!! Il..

m N m f a,

Aug, 19, 1924.

E. s. "BURDICK RADIAL LOCK 5 Sheets-Sheet 2 Filed Oct. 29, 1921 Patented Aug. i9, 1924.

EAR-L s. Bosnien, or MILWAUKIE, OREGON.

RADIAL Loon.

nppncanon'med ocvtobereaiezi. seriaino'snae.' c

resident of M'ilwaukie, inthe A'county of- Clackamas and Statel of Oregon, have in` vented a new and useful Radial Lock, of which the following is a specification." n This invention'relates more particularly to locks vwhich are secured to doors and which are controlled by the united action of a key and a coin. y 4

The objects of my invention are to provide an exceedingly slmplerand efficient lock adaptable to many different purposes, especially for lockers or rented compartments or garages in which the user purchases a key by inserting a coin and can unlock the lock only by inserting and surrendering 4his key.

A further object is to soconstruct my lock as to eliminate a large percentage of the friction ordinarily encountered in'- locks of` this nature which render 'the power required to operate them an extremely kvariable quantity.' c f v A still` further object is to producefa lock in which the combination can readily be altered to correspond with a given'key with'- out necessitating the elaborate kor Aexpensive equipment for duplicating a keywhichmay' be missing, or removing and replacing a" combination to protect against stolen keys.

Another object is to provide a `key which cannot be inserted into the key hole in the wrong manner and cannot be inserted into another locker key hole at all;

I accomplish these results inthe manner set forth in the following specification and illustrated in the accompanyingdrawings,y

in which:

Figure l is a section looking at the lock from the rear showing the cover andaetuating disk removed and showing the parts in the unlocked position. similar to Fig. l showing the cover removed and a portion of the actuating diskfcutaway with the parts in the locked position;k Figure 3 is a section along the line 3;?) in Fig. l. y.Figure 4t is a section along theline 1C-4L in Fig. 2. Figure 5 is a side elevation from the bolt side of Fig. 1. Figure 6 is a section along thelineG-G in Fig. l. Figure 7 is a section along the line 7-,7 in Fig. 2. Figure 8 is a front elevation showing the which swingsoutside'of thev wall Figure 2 is a view slot in thisfork is an` a side elevation. `FigurelO `is a front elevabei@ .muaangvspnng 0f which Figures is tionfof a' key of which Figure 11 is a plan and Figure 12 a side elevation'. Figurefl isr` a y,front 'elevation' ofa modified form of key of which Figure '14 is/a side elevation. Figures 15 and modifications r of the! key. `Figure `17 `isa front view of the adjustable keyhole mechanism of whichFigure lSis a side" elevation shown in section. 'y Figure 19is afront view of a group'ofparts including akey during the4 unlocking operation. Figure20 is an 16 .are plan views of s other f end elevation of a portion kof Fig.y 19. show; i

ingy an adjustableplunger and thefmanner in which it is prevented fromkr getting out of alinement. y f l" Similar numbers of reference referto the samef or similar lparts throughout the several views.

Referring in detailto the drawings, I have chosen to illustrate my vdevicer as attached to the plate 30' whichinay yact as the hinged portion of a door.` Secured "onthe plateBO. 'i'

is a second plate 31 whichr forms one sideof the frame for `the lock. The walls 32`1form a box with thejplate 3l.A and contain all 'of the parts of the lockwihich arejcovered with a cover-'plate 33., A handlefl is secured to the shaft 35 whichpasses through the' plates n 30581 and Rotatably mounted on the hub 36,' whichis secured tothe inner side of the platel, is a vbolt'disk 37 which i'lhas formed onfits peripherya projecting bolt 38 i 32 when the disk 37 is rotatedA on its axis. This bolt is'slightly offset'from the centraly portion of the'bolt'disk. Theside B9 of the'boltBS is almost radial and extends the full length of the oifset portion of the bolt. A second pro` jecting member 4.0 is also offset from the bolt disk 37 and the spacey between the members 88 andV Li() isutilized toreceive the coin asit is deposited forfthe purchase of at key. "y

s Onthe inner side of bolt'BSl have secured a curved fork' 4,1 y of ythin material flush with theinner side of the bolt 38. yThe arc struck from the centery of the shaft 35. A curved slot(` 42 alsor struck from the centerofjthe shaftI "35 is Mcut through the bolt diskBTand cony tains a curved tableyllwhich isy secured toy the inner'wside "of the*lplatel. The table combination lock,

which access may be secured from the outn Side by an authorized attendant through a or through any other lock- Below the key guides 48 and ing device.

ejecting chute 50 having an 48A is a key f open access to the exterior of the lock.

Above the table 43 is also placed a key receiving chute 51 whose upper end is provided with a slidable opening 52A having a plurality of lugs 53 attached thereto vand which may be held in any position by means of the screws54 in the plate 31. The lower end of the keyreceiving chute 51 is just v wide enough to permit the passage of the key 52 freely the table 43.

Pivoted on the same-screw 54A are three arms 55,56 and 57 which are held against the stop 58 bythe springs 59. Each of these arms contains a slot 60 which is an arc struck from the center of the shaft when the arms 55, 56 and 57 are held a fixed distance away from the stop 58.

and allow same to rest upon f .'A third projection 61 on the bolt disk 37 engages one side of thel key 52 as it rests on the table 43. On the outer side of the projection 61 is formed a stud 62 which is adapted to ride in the curved slots 60 of the three arms 55, 56 and 57 when they are in the proper position. If they are not properly positioned then the lug 62 will strike either of thevsurfaces 63 and prevent the bolt disk 37 from rotating in an unlocky ing direction.

Lmeans, of the turned edge 71 .Referring more particularly to the key itself itvill be observed that I `have illustrated a somewhat rectangular key 52 having'a curved base64 and curved steps 65, 66 and 67 formed on its upper side and that onits rear side are .av number of grooves 68 which correspond with the lugs 53 on the member 52A.

It will be observed that the corners 69 of the steps 65, 66 land 67 are slightly rounded and that it is preferable to round all yof the corners of the key slightly to pre-4 vent .wear inthe pockets of the carrier.

In korder to move the arms 55, 56 and 5.7 the amount required to enable the lug 62 to enter the slots 60 I have slidably attached to each of the arms a plunger 70 which is heldin its angular relation to its army by and is held against sliding after being properly positioned by means of kthe screw 72 which is locked by the nut 73. The corners 69 are rounded slightly in order to enable the motion of the key ,'52 to raiseeach of the plungers 7() to a height which will permit it to ride upon its respectivestep', 66 or 67 which, being a fixed distance, determines accurately the position of the curved slot 60, as shown in Fig. 19, by the interpostion of the key 52 on the table 43.

It will be observed that I have also illus- `trated avnumber of modifications of this key, such as the rectangular key in Figures 13 and 14, andthe keysv shown in Figures 15 and 16 having circular and doive-tailed grooves 74 and 75 which,"of course, would require-a corresponding lug 53. The grooves prevent easy duplica- 74'and 75 are used to tion of the key, for process. I j

Secured on'the shaft 35 is a bolt actuating disk 76 which has an offset projection 77 the instance by a casting same shapeand size as is the projection 40 on the bolt disk 37. This projection 77 carries a lug 78 adapted to ride in the slot of the member 41, and if a4 coin 44 is in the way to engage same and to transfer its motion to the bolt disk 37.4causing the bolt 38 to take the position shown in Fig. 2. The face 7 9 of the projection 77l engages the key 52 when rotating in the opposite or unlockingoposr tion and moves it along on the table 43.

In Figures 8 and 9 I have illustrated a spring mechanism which consists of arplungd er 81 which is. attached to the bolt disk 37 by means of the pin 82. The lower end of the plunger 81 carries a compression spring 83 and rides in the slotted bracket 84 which is secured to the plate 31. omitted inFigures 1 to 7 to avoid complication and their relation to the lock is shown onlyr in vFigures 8fand 9,

l The function of these parts is to causethe bolt38 to lmake acomplete throw whenever it passes over the center of its travel.

Y The operation of my Adevice is as follows: lhen an individual desires to check his suitcase in a locker equipped with oneof these devices he -merely inserts his coin in the chute 45 and rotates the handle 34. Acting through thek coin 44 the lug' 78 rotates the bolt disk to the which point the vcoin drops off of the table 43 and falls into the receptacle 49. The key 52, which rests upon the table 80, is atthe same time moved. along 'bythe member 48 until it falls ofi'l of its table 8O into the key ejecting chute 50 and is delivered chaser, who carries it away with him.

VUpon attempting to unlock this locker the same key, which cannot be insertedinto any other lock owing to the grooves on its back, is placed lin the key chute 51 and rests on the table 43. Theha-ndle 34 now being turned on the opposite'direction the facel 7 9 on the projection 77. engages the key 52 and Slides same along the table 43.`

These parts are to the pur-` The Corners ,69 of the key steps 65,66

vWhe-n theproper key has been inserteda continued movement of the lever Stand its attached parts causes the `key 52' to fall'of of the table 4:3 and rest upon the table 80 Where it is ready for the next usery of the lock. j

In event that a key is lost or stolen the caretaker merely secures a nevv one, adjusts the key hole to permit its insertion intoy the lock and adjusts the plungers so that they Will rest upon their respective steps When` the lug 62 is in or about to enter the slot 60.

The screws 72 are then tightened and the ,f

lock ready 'for use. It is evident that by this method the individual combinations may be altered as often' as desired and that the danger of anyone placing his key in the Wrong locker and possibly causing him to miss a train from the entailed delay will be entirely eliminated. It Will be understood that it is desirable in the production of the keys 52 that the grooves 68 ai'e never spaced equi-distantfrom the center ot the key, as this will prevent any possibility of the key being inserted Wrong end Jiioremost in the key slot.

lVhile I have thus illustrated and .described my invention it is not my desiret'o limit myself to this precise form or method i of applcation, but intend that it shall cover all forms and modifications that tall fairly Within the appended claims. What I claim is: j

l. A. lock having a frame, a radial bolt pivoted on said frame, a coin-containing recess formed Within said bolt, acurved table secured to said frame forming a bottom for said recess, and a rotatable bolt actuating arm adapted to engage said coin in a manner to move said bolt to a locked Vposition and to release said coin at the completion of the locking travel of said bolt therebykvcremoving any operating action between said bolt f and arm.

2. The combination of a lock having a fame, a radial bolt pivoted on the inside ofy said traine, a coin-containing recess formed in said bolt, a curved table forming abort-` toni for said recess, a rotatable bolt actuating arm adapted to engage said coin in a manner to move said bolt and torelease said coin at the completion of the locking travel o'l said bolt, and a keyadapted to lock said arm to said bolt in a manner to Withdraw said bolt and to release said key after the complete Withdrawal of said bolt.

3. A lock having a frame, a rotatable bolt disk pivoted in said frame having a coincontaining slot in said disk, a curvedr table on said trame adapted to support a coin in said slot. an arm pivoted on the same axis as is said bolt and having a coin-engaging curved slotadaptedto receive said vj )rojeoting -stud When yproperly positioned', by [ae key, akey adapted-to ri-defin -said rotatable.'

disk on said curved table, and an adjustabley plunger on eachof said slotted arms adapt-y 'ed to engage saidkey and to be actuated thereby. f

4. An adjustable` combination lock haying a rotatable bolt carrying disk, a lug projecting from said disk, a plurality of slotted tumbler arms pivoted beside said disk and adapted to receivesaid lug Within their slots when properly'positioned, and a key adapted to be carried by said rotatable bolt disk` and to engage the various tumblers and actu- `ate same in a manner that said slots Will register With said lug.

5. A rotatable' bolt disk having coin-containing andfkeycontain1ng recesses formed therein, a stationary curved table forming a' bottom for said recesses during parts ,ofv

their travel, means for rotating said disk by ypressing `a coin against one side of its recess in a manner to project said bolt, means for withdrawing said 'bolt by reversying the movement of said disk consisting of ay key placed Within said key recess upon said curved table, means for moving said key against one side ot' its recess until said` bolt is Withdrawn, means for locking said j disk against rotation by an improper key consisting of a stud projecting from said disk, a plurality of slottedarms alongside of said disk in the path of said stud, adjustable plunger-s on said slotted Iarms adapted to permit the registration of said yslots with saidstud whenl said plungers are acted upon `by `a given key, and an adjustable `key slot adapted to permit said slot also to conform with said given key.

6. A `key for coiny controlled locks con*y `sisting of a flat plate having parallel sides,

aconcavebase, steps formed on one side of its upper portion perpendicular to its si-des,4r anda plurality of grooves formed in th'ej back of said key perpendicular to said steps.

7. Afkey for coincontrolled locks cony sisting of a flat `plate having parallelsides,

concentric base and step members formed at 'one side of itsftop, and a pair of grooves formed in the back of said key parallel to its sides.

8. In a lock, the combination of a front" and backplate member having an operating handle mounted ona shaft Which passes through both plates and `having a hub on the inside of the front plate around said shaft with a rotatable bolt disk mounted on said hub, a curved table secured on the inside of said Jfront plate and passing through said bolt disk, a coin chute leading froml the front offsaid fronty plate to the top of said holding said bolt disk against rotation coni table, .a key'ehute leading from the front'. sstng of a lugsecured to said bolt disk, u

of said front plate tothe top of said table, plurality of pvoted tumblrs each of which '10 an 4arme secured to .said shaft adapted to has a Curved slot adapted to receive said lug f5. press against al. coin in one dreoton. when when said tumblers are properly positioned y on said table or against a key upon said.' by engagement ywith said key. y f

EARL S. BURDICK.

table `in the Opposite direction, means fork 

